Heck, that's more than what it takes to receive Swedish citizenship, for which Sweden has no language, income, employment, or skills requirement. <https://www.migrationsverket.se/English/Private-individuals/...>

In completely unrelated news, Arabic is now the second most spoken language in Sweden. <https://digitaledition.chicagotribune.com/tribune/article_po...>

Ignoring English seems a little silly. Doesn't modern standard Arabic function as a lingua franca between people who natively speak something else (even if mutually unintelligible local Arabics)? That would explain it's popularity, but on those grounds English would be even more popular.